TY - JOUR AU - Lamont,Owen AU - Frazzini,Andrea TI - The Earnings Announcement Premium and Trading Volume JF - National Bureau of Economic Research Working Paper Series VL - No. 13090 PY - 2007 Y2 - May 2007 UR - http://www.nber.org/papers/w13090 L1 - http://www.nber.org/papers/w13090.pdf N1 - Author contact info: Owen Lamont Department of Economics Harvard University Cambridge MA 02138 E-Mail: owen.lamont@yale.edu Andrea Frazzini AQR Capital Management, LLC Two Greenwich Plaza, 3rd Floor Greenwich, CT 06830 Tel: 203 742 3894 E-Mail: andrea.frazzini@aqr.com M2 - featured in NBER digest on 2008-03-01 AB - On average, stock prices rise around scheduled earnings announcement dates. We show that this earnings announcement premium is large, robust, and strongly related to the fact that volume surges around announcement dates. Stocks with high past announcement period volume earn the highest announcement premium, suggesting some common underlying cause for both volume and the premium. We show that high premium stocks experience the highest levels of imputed small investor buying, suggesting that the premium is driven by buying by small investors when the announcement catches their attention. ER -